Enhanced measurement and report configuration for full-duplex operation

ABSTRACT

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless node (e.g., a user equipment) may determine one or more measurements associated with a beam search performed during a downlink beam management process. The first wireless node may transmit, to a second wireless node (e.g., a base station), a report that indicates one or more candidate downlink receive beams, candidate uplink transmit beams, or candidate downlink receive and uplink transmit beam pairs suitable for full-duplex operation based at least in part on the one or more measurements. Numerous other aspects are provided.

CROSS-REFERENCE TO RELATED APPLICATION

This patent application claims priority to U.S. Provisional PatentApplication No. 63/027,686, filed on May 20, 2020, entitled “ENHANCEDMEASUREMENT AND REPORT CONFIGURATION FOR FULL-DUPLEX OPERATION,” andassigned to the assignee hereof. The disclosure of the prior applicationis considered part of and is incorporated by reference into this patentapplication.

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wirelesscommunication and to techniques and apparatuses associated with anenhanced measurement and report configuration for full-duplex operation.

BACKGROUND

Wireless communication systems are widely deployed to provide varioustelecommunication services such as telephony, video, data, messaging,and broadcasts. Typical wireless communication systems may employmultiple-access technologies capable of supporting communication withmultiple users by sharing available system resources (e.g., bandwidth,transmit power, or the like). Examples of such multiple-accesstechnologies include code division multiple access (CDMA) systems, timedivision multiple access (TDMA) systems, frequency-division multipleaccess (FDMA) systems, orthogonal frequency-division multiple access(OFDMA) systems, single-carrier frequency-division multiple access(SC-FDMA) systems, time division synchronous code division multipleaccess (TD-SCDMA) systems, and Long Term Evolution (LTE).LTE/LTE-Advanced is a set of enhancements to the Universal MobileTelecommunications System (UMTS) mobile standard promulgated by theThird Generation Partnership Project (3GPP).

A wireless network may include a number of base stations (BSs) that cansupport communication for a number of user equipment (UEs). A UE maycommunicate with a BS via the downlink and uplink. “Downlink” (or“forward link”) refers to the communication link from the BS to the UE,and “uplink” (or “reverse link”) refers to the communication link fromthe UE to the BS. As will be described in more detail herein, a BS maybe referred to as a Node B, a gNB, an access point (AP), a radio head, atransmit receive point (TRP), a New Radio (NR) BS, a 5G Node B, or thelike.

The above multiple access technologies have been adopted in varioustelecommunication standards to provide a common protocol that enablesdifferent user equipment to communicate on a municipal, national,regional, and even global level. NR, which may also be referred to as5G, is a set of enhancements to the LTE mobile standard promulgated bythe 3GPP. NR is designed to better support mobile broadband Internetaccess by improving spectral efficiency, lowering costs, improvingservices, making use of new spectrum, and better integrating with otheropen standards using orthogonal frequency division multiplexing (OFDM)with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL), using CP-OFDMand/or SC-FDM (e.g., also known as discrete Fourier transform spreadOFDM (DFT-s-OFDM)) on the uplink (UL), as well as supportingbeamforming, multiple-input multiple-output (MIMO) antenna technology,and carrier aggregation. As the demand for mobile broadband accesscontinues to increase, further improvements in LTE, NR, and other radioaccess technologies remain useful.

For example, full-duplex communication may provide improvements in LTE,NR, and other radio access technologies by enabling contemporaneousuplink and downlink communication by a single wireless device using thesame resources. Full-duplex communication may provide a reduction inlatency, enhanced spectral efficiency per cell or per UE, and moreefficient resource utilization.

SUMMARY

In some aspects, a method of wireless communication, performed by awireless node, may include: determining one or more measurementsassociated with a beam search performed during a downlink beammanagement process; and transmitting, to another wireless node, a reportthat indicates one or more candidate downlink receive beams, candidateuplink transmit beams, or candidate downlink receive and uplink transmitbeam pairs suitable for full-duplex operation based at least in part onthe one or more measurements.

In some aspects, a method of wireless communication, performed by awireless node, may include: transmitting one or more downlink signals inone or more beam sweeps during a downlink beam management process; andreceiving, from another wireless node, a report that indicates one ormore candidate downlink receive beams, candidate uplink transmit beams,or candidate downlink receive and uplink transmit beam pairs suitablefor full-duplex operation based at least in part on one or moremeasurements associated with a beam search performed by the otherwireless node during the downlink beam management process.

In some aspects, a wireless node for wireless communication may includea memory and one or more processors operatively coupled to the memory.The memory and the one or more processors may be configured to:determine one or more measurements associated with a beam searchperformed during a downlink beam management process; and transmit, toanother wireless node, a report that indicates one or more candidatedownlink receive beams, candidate uplink transmit beams, or candidatedownlink receive and uplink transmit beam pairs suitable for full-duplexoperation based at least in part on the one or more measurements.

In some aspects, a wireless node for wireless communication may includea memory and one or more processors operatively coupled to the memory.The memory and the one or more processors may be configured to: transmitone or more downlink signals in one or more beam sweeps during adownlink beam management process; and receive, from another wirelessnode, a report that indicates one or more candidate downlink receivebeams, candidate uplink transmit beams, or candidate downlink receiveand uplink transmit beam pairs suitable for full-duplex operation basedat least in part on one or more measurements associated with a beamsearch performed by the other wireless node during the downlink beammanagement process.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a wirelessnode, may cause the one or more processors to: determine one or moremeasurements associated with a beam search performed during a downlinkbeam management process; and transmit, to another wireless node, areport that indicates one or more candidate downlink receive beams,candidate uplink transmit beams, or candidate downlink receive anduplink transmit beam pairs suitable for full-duplex operation based atleast in part on the one or more measurements.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a wirelessnode, may cause the one or more processors to: transmit one or moredownlink signals in one or more beam sweeps during a downlink beammanagement process; and receive, from another wireless node, a reportthat indicates one or more candidate downlink receive beams, candidateuplink transmit beams, or candidate downlink receive and uplink transmitbeam pairs suitable for full-duplex operation based at least in part onone or more measurements associated with a beam search performed by theother wireless node during the downlink beam management process.

In some aspects, an apparatus for wireless communication may include:means for determining one or more measurements associated with a beamsearch performed during a downlink beam management process; and meansfor transmitting, to another apparatus, a report that indicates one ormore candidate downlink receive beams, candidate uplink transmit beams,or candidate downlink receive and uplink transmit beam pairs suitablefor full-duplex operation based at least in part on the one or moremeasurements.

In some aspects, an apparatus for wireless communication may include:means for transmitting one or more downlink signals in one or more beamsweeps during a downlink beam management process; and means forreceiving, from another apparatus, a report that indicates one or morecandidate downlink receive beams, candidate uplink transmit beams, orcandidate downlink receive and uplink transmit beam pairs suitable forfull-duplex operation based at least in part on one or more measurementsassociated with a beam search performed by the other wireless nodeduring the downlink beam management process.

Aspects generally include a method, apparatus, system, computer programproduct, non-transitory computer-readable medium, user equipment, basestation, wireless communication device, and/or processing system assubstantially described herein with reference to and as illustrated bythe drawings and specification.

The foregoing has outlined rather broadly the features and technicaladvantages of examples according to the disclosure in order that thedetailed description that follows may be better understood. Additionalfeatures and advantages will be described hereinafter. The conceptionand specific examples disclosed may be readily utilized as a basis formodifying or designing other structures for carrying out the samepurposes of the present disclosure. Such equivalent constructions do notdepart from the scope of the appended claims. Characteristics of theconcepts disclosed herein, both their organization and method ofoperation, together with associated advantages will be better understoodfrom the following description when considered in connection with theaccompanying figures. Each of the figures is provided for the purposesof illustration and description, and not as a definition of the limitsof the claims.

While aspects are described in the present disclosure by illustration tosome examples, those skilled in the art will understand that suchaspects may be implemented in many different arrangements and scenarios.Techniques described herein may be implemented using different platformtypes, devices, systems, shapes, sizes, and/or packaging arrangements.For example, some aspects may be implemented via integrated chipembodiments or other non-module-component based devices (e.g., end-userdevices, vehicles, communication devices, computing devices, industrialequipment, retail/purchasing devices, medical devices, or artificialintelligence-enabled devices). Aspects may be implemented in chip-levelcomponents, modular components, non-modular components, non-chip-levelcomponents, device-level components, or system-level components. Devicesincorporating described aspects and features may include additionalcomponents and features for implementation and practice of claimed anddescribed aspects. For example, transmission and reception of wirelesssignals may include a number of components for analog and digitalpurposes (e.g., hardware components including antennas, RF chains, poweramplifiers, modulators, buffers, processor(s), interleavers, adders, orsummers). It is intended that aspects described herein may be practicedin a wide variety of devices, components, systems, distributedarrangements, or end-user devices of varying size, shape, andconstitution.

BRIEF DESCRIPTION OF THE DRAWINGS

So that the above-recited features of the present disclosure can beunderstood in detail, a more particular description, briefly summarizedabove, may be had by reference to aspects, some of which are illustratedin the appended drawings. It is to be noted, however, that the appendeddrawings illustrate only certain typical aspects of this disclosure andare therefore not to be considered limiting of its scope, for thedescription may admit to other equally effective aspects. The samereference numbers in different drawings may identify the same or similarelements.

FIG. 1 is a diagram illustrating an example of a wireless network, inaccordance with the present disclosure.

FIG. 2 is a diagram illustrating an example of a base station incommunication with a UE in a wireless network, in accordance with thepresent disclosure.

FIG. 3 is a diagram illustrating examples of radio access networks, inaccordance with the present disclosure.

FIG. 4 is a diagram illustrating an example of an integrated access andbackhaul network architecture, in accordance with the presentdisclosure.

FIGS. 5A-5C are diagrams illustrating examples of full-duplexcommunication, in accordance with the present disclosure.

FIG. 6 is a diagram illustrating one or more examples associated with anenhanced measurement and report configuration for full-duplex operation,in accordance with the present disclosure.

FIGS. 7-8 are diagrams illustrating example processes associated with anenhanced measurement and report configuration for full-duplex operation,in accordance with the present disclosure.

DETAILED DESCRIPTION

Various aspects of the disclosure are described more fully hereinafterwith reference to the accompanying drawings. This disclosure may,however, be embodied in many different forms and should not be construedas limited to any specific structure or function presented throughoutthis disclosure. Rather, these aspects are provided so that thisdisclosure will be thorough and complete, and will fully convey thescope of the disclosure to those skilled in the art. Based on theteachings herein, one skilled in the art should appreciate that thescope of the disclosure is intended to cover any aspect of thedisclosure disclosed herein, whether implemented independently of orcombined with any other aspect of the disclosure. For example, anapparatus may be implemented or a method may be practiced using anynumber of the aspects set forth herein. In addition, the scope of thedisclosure is intended to cover such an apparatus or method which ispracticed using other structure, functionality, or structure andfunctionality in addition to or other than the various aspects of thedisclosure set forth herein. It should be understood that any aspect ofthe disclosure disclosed herein may be embodied by one or more elementsof a claim.

Several aspects of telecommunication systems will now be presented withreference to various apparatuses and techniques. These apparatuses andtechniques will be described in the following detailed description andillustrated in the accompanying drawings by various blocks, modules,components, circuits, steps, processes, algorithms, or the like(collectively referred to as “elements”). These elements may beimplemented using hardware, software, or combinations thereof. Whethersuch elements are implemented as hardware or software depends upon theparticular application and design constraints imposed on the overallsystem.

It should be noted that while aspects may be described herein usingterminology commonly associated with a 5G or NR radio access technology(RAT), aspects of the present disclosure can be applied to other RATs,such as a 3G RAT, a 4G RAT, and/or a RAT subsequent to 5G (e.g., 6G).

FIG. 1 is a diagram illustrating an example of a wireless network 100,in accordance with the present disclosure. The wireless network 100 maybe or may include elements of a 5G (NR) network and/or an LTE network,among other examples. The wireless network 100 may include a number ofbase stations 110 (shown as BS 110 a, BS 110 b, BS 110 c, and BS 110 d)and other network entities. A base station (BS) is an entity thatcommunicates with user equipment (UEs) and may also be referred to as anNR BS, a Node B, a gNB, a 5G node B (NB), an access point, a transmitreceive point (TRP), or the like. Each BS may provide communicationcoverage for a particular geographic area. In 3GPP, the term “cell” canrefer to a coverage area of a BS and/or a BS subsystem serving thiscoverage area, depending on the context in which the term is used.

A BS may provide communication coverage for a macro cell, a pico cell, afemto cell, and/or another type of cell. A macro cell may cover arelatively large geographic area (e.g., several kilometers in radius)and may allow unrestricted access by UEs with service subscription. Apico cell may cover a relatively small geographic area and may allowunrestricted access by UEs with service subscription. A femto cell maycover a relatively small geographic area (e.g., a home) and may allowrestricted access by UEs having association with the femto cell (e.g.,UEs in a closed subscriber group (CSG)). ABS for a macro cell may bereferred to as a macro BS. ABS for a pico cell may be referred to as apico BS. A BS for a femto cell may be referred to as a femto BS or ahome BS. In the example shown in FIG. 1, a BS 110 a may be a macro BSfor a macro cell 102 a, a BS 110 b may be a pico BS for a pico cell 102b, and a BS 110 c may be a femto BS for a femto cell 102 c. A BS maysupport one or multiple (e.g., three) cells. The terms “eNB”, “basestation”, “NR BS”, “gNB”, “TRP”, “AP”, “node B”, “5G NB”, and “cell” maybe used interchangeably herein.

In some aspects, a cell may not necessarily be stationary, and thegeographic area of the cell may move according to the location of amobile BS. In some aspects, the BSs may be interconnected to one anotherand/or to one or more other BSs or network nodes (not shown) in thewireless network 100 through various types of backhaul interfaces, suchas a direct physical connection or a virtual network, using any suitabletransport network.

Wireless network 100 may also include relay stations. A relay station isan entity that can receive a transmission of data from an upstreamstation (e.g., a BS or a UE) and send a transmission of the data to adownstream station (e.g., a UE or a BS). A relay station may also be aUE that can relay transmissions for other UEs. In the example shown inFIG. 1, a relay BS 110 d may communicate with macro BS 110 a and a UE120 d in order to facilitate communication between BS 110 a and UE 120d. A relay BS may also be referred to as a relay station, a relay basestation, a relay, or the like.

Wireless network 100 may be a heterogeneous network that includes BSs ofdifferent types, such as macro BSs, pico BSs, femto BSs, relay BSs, orthe like. These different types of BSs may have different transmit powerlevels, different coverage areas, and different impacts on interferencein wireless network 100. For example, macro BSs may have a high transmitpower level (e.g., 5 to 40 watts) whereas pico BSs, femto BSs, and relayBSs may have lower transmit power levels (e.g., 0.1 to 2 watts).

A network controller 130 may couple to a set of BSs and may providecoordination and control for these BSs. Network controller 130 maycommunicate with the BSs via a backhaul. The BSs may also communicatewith one another, directly or indirectly, via a wireless or wirelinebackhaul.

UEs 120 (e.g., 120 a, 120 b, 120 c) may be dispersed throughout wirelessnetwork 100, and each UE may be stationary or mobile. A UE may also bereferred to as an access terminal, a terminal, a mobile station, asubscriber unit, a station, or the like. A UE may be a cellular phone(e.g., a smart phone), a personal digital assistant (PDA), a wirelessmodem, a wireless communication device, a handheld device, a laptopcomputer, a cordless phone, a wireless local loop (WLL) station, atablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook,a medical device or equipment, biometric sensors/devices, wearabledevices (smart watches, smart clothing, smart glasses, smart wristbands, smart jewelry (e.g., smart ring, smart bracelet)), anentertainment device (e.g., a music or video device, or a satelliteradio), a vehicular component or sensor, smart meters/sensors,industrial manufacturing equipment, a global positioning system device,or any other suitable device that is configured to communicate via awireless or wired medium.

Some UEs may be considered machine-type communication (MTC) or evolvedor enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEsinclude, for example, robots, drones, remote devices, sensors, meters,monitors, and/or location tags, that may communicate with a basestation, another device (e.g., remote device), or some other entity. Awireless node may provide, for example, connectivity for or to a network(e.g., a wide area network such as Internet or a cellular network) via awired or wireless communication link. Some UEs may be consideredInternet-of-Things (IoT) devices, and/or may be implemented as NB-IoT(narrowband internet of things) devices. Some UEs may be considered aCustomer Premises Equipment (CPE). UE 120 may be included inside ahousing that houses components of UE 120, such as processor componentsand/or memory components. In some aspects, the processor components andthe memory components may be coupled together. For example, theprocessor components (e.g., one or more processors) and the memorycomponents (e.g., a memory) may be operatively coupled, communicativelycoupled, electronically coupled, and/or electrically coupled.

In general, any number of wireless networks may be deployed in a givengeographic area. Each wireless network may support a particular RAT andmay operate on one or more frequencies. A RAT may also be referred to asa radio technology, an air interface, or the like. A frequency may alsobe referred to as a carrier, a frequency channel, or the like. Eachfrequency may support a single RAT in a given geographic area in orderto avoid interference between wireless networks of different RATs. Insome cases, NR or 5G RAT networks may be deployed.

In some aspects, two or more UEs 120 (e.g., shown as UE 120 a and UE 120e) may communicate directly using one or more sidelink channels (e.g.,without using a base station 110 as an intermediary to communicate withone another). For example, the UEs 120 may communicate usingpeer-to-peer (P2P) communications, device-to-device (D2D)communications, a vehicle-to-everything (V2X) protocol (e.g., which mayinclude a vehicle-to-vehicle (V2V) protocol or avehicle-to-infrastructure (V2I) protocol), and/or a mesh network. Inthis case, the UE 120 may perform scheduling operations, resourceselection operations, and/or other operations described elsewhere hereinas being performed by the base station 110.

Devices of wireless network 100 may communicate using theelectromagnetic spectrum, which may be subdivided based on frequency orwavelength into various classes, bands, channels, or the like. Forexample, devices of wireless network 100 may communicate using anoperating band having a first frequency range (FR1), which may span from410 MHz to 7.125 GHz, and/or may communicate using an operating bandhaving a second frequency range (FR2), which may span from 24.25 GHz to52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred toas mid-band frequencies. Although a portion of FR1 is greater than 6GHz, FR1 is often referred to as a “sub-6 GHz” band. Similarly, FR2 isoften referred to as a “millimeter wave” band despite being differentfrom the extremely high frequency (EHF) band (30 GHz-300 GHz) which isidentified by the International Telecommunications Union (ITU) as a“millimeter wave” band. Thus, unless specifically stated otherwise, itshould be understood that the term “sub-6 GHz” or the like, if usedherein, may broadly represent frequencies less than 6 GHz, frequencieswithin FR1, and/or mid-band frequencies (e.g., greater than 7.125 GHz).Similarly, unless specifically stated otherwise, it should be understoodthat the term “millimeter wave” or the like, if used herein, may broadlyrepresent frequencies within the EHF band, frequencies within FR2,and/or mid-band frequencies (e.g., less than 24.25 GHz). It iscontemplated that the frequencies included in FR1 and FR2 may bemodified, and techniques described herein are applicable to thosemodified frequency ranges.

As indicated above, FIG. 1 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 1.

FIG. 2 is a diagram illustrating an example 200 of a base station 110 incommunication with a UE 120 in a wireless network 100, in accordancewith the present disclosure. Base station 110 may be equipped with Tantennas 234 a through 234 t, and UE 120 may be equipped with R antennas252 a through 252 r, where in general T≥1 and R≥1.

At base station 110, a transmit processor 220 may receive data from adata source 212 for one or more UEs, select one or more modulation andcoding schemes (MCS) for each UE based at least in part on channelquality indicators (CQIs) received from the UE, process (e.g., encodeand modulate) the data for each UE based at least in part on the MCS(s)selected for the UE, and provide data symbols for all UEs. Transmitprocessor 220 may also process system information (e.g., for semi-staticresource partitioning information (SRPI)) and control information (e.g.,CQI requests, grants, and/or upper layer signaling) and provide overheadsymbols and control symbols. Transmit processor 220 may also generatereference symbols for reference signals (e.g., a cell-specific referencesignal (CRS) or a demodulation reference signal (DMRS)) andsynchronization signals (e.g., a primary synchronization signal (PSS) ora secondary synchronization signal (SSS)). A transmit (TX)multiple-input multiple-output (MIMO) processor 230 may perform spatialprocessing (e.g., precoding) on the data symbols, the control symbols,the overhead symbols, and/or the reference symbols, if applicable, andmay provide T output symbol streams to T modulators (MODs) 232 a through232 t. Each modulator 232 may process a respective output symbol stream(e.g., for OFDM) to obtain an output sample stream. Each modulator 232may further process (e.g., convert to analog, amplify, filter, andupconvert) the output sample stream to obtain a downlink signal. Tdownlink signals from modulators 232 a through 232 t may be transmittedvia T antennas 234 a through 234 t, respectively.

At UE 120, antennas 252 a through 252 r may receive the downlink signalsfrom base station 110 and/or other base stations and may providereceived signals to demodulators (DEMODs) 254 a through 254 r,respectively. Each demodulator 254 may condition (e.g., filter, amplify,downconvert, and digitize) a received signal to obtain input samples.Each demodulator 254 may further process the input samples (e.g., forOFDM) to obtain received symbols. A MIMO detector 256 may obtainreceived symbols from all R demodulators 254 a through 254 r, performMIMO detection on the received symbols if applicable, and providedetected symbols. A receive processor 258 may process (e.g., demodulateand decode) the detected symbols, provide decoded data for UE 120 to adata sink 260, and provide decoded control information and systeminformation to a controller/processor 280. The term“controller/processor” may refer to one or more controllers, one or moreprocessors, or a combination thereof. A channel processor may determinea reference signal received power (RSRP) parameter, a received signalstrength indicator (RSSI) parameter, a reference signal received quality(RSRQ) parameter, and/or a channel quality indicator (CQI) parameter,among other examples. In some aspects, one or more components of UE 120may be included in a housing 284.

Network controller 130 may include communication unit 294,controller/processor 290, and memory 292. Network controller 130 mayinclude, for example, one or more devices in a core network. Networkcontroller 130 may communicate with base station 110 via communicationunit 294.

Antennas (e.g., antennas 234 a through 234 t and/or antennas 252 athrough 252 r) may include, or may be included within, one or moreantenna panels, antenna groups, sets of antenna elements, and/or antennaarrays, among other examples. An antenna panel, an antenna group, a setof antenna elements, and/or an antenna array may include one or moreantenna elements. An antenna panel, an antenna group, a set of antennaelements, and/or an antenna array may include a set of coplanar antennaelements and/or a set of non-coplanar antenna elements. An antennapanel, an antenna group, a set of antenna elements, and/or an antennaarray may include antenna elements within a single housing and/orantenna elements within multiple housings. An antenna panel, an antennagroup, a set of antenna elements, and/or an antenna array may includeone or more antenna elements coupled to one or more transmission and/orreception components, such as one or more components of FIG. 2.

On the uplink, at UE 120, a transmit processor 264 may receive andprocess data from a data source 262 and control information (e.g., forreports that include RSRP, RSSI, RSRQ, and/or CQI) fromcontroller/processor 280. Transmit processor 264 may also generatereference symbols for one or more reference signals. The symbols fromtransmit processor 264 may be precoded by a TX MIMO processor 266 ifapplicable, further processed by modulators 254 a through 254 r (e.g.,for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In someaspects, a modulator and a demodulator (e.g., MOD/DEMOD 254) of the UE120 may be included in a modem of the UE 120. In some aspects, the UE120 includes a transceiver. The transceiver may include any combinationof antenna(s) 252, modulators and/or demodulators 254, MIMO detector256, receive processor 258, transmit processor 264, and/or TX MIMOprocessor 266. The transceiver may be used by a processor (e.g.,controller/processor 280) and memory 282 to perform aspects of any ofthe methods described herein (for example, as described with referenceto FIGS. 5A-5C, FIG. 6, FIG. 7, and/or FIG. 8).

At base station 110, the uplink signals from UE 120 and other UEs may bereceived by antennas 234, processed by demodulators 232, detected by aMIMO detector 236 if applicable, and further processed by a receiveprocessor 238 to obtain decoded data and control information sent by UE120. Receive processor 238 may provide the decoded data to a data sink239 and the decoded control information to controller/processor 240.Base station 110 may include communication unit 244 and communicate tonetwork controller 130 via communication unit 244. Base station 110 mayinclude a scheduler 246 to schedule UEs 120 for downlink and/or uplinkcommunications. In some aspects, a modulator and a demodulator (e.g.,MOD/DEMOD 232) of the base station 110 may be included in a modem of thebase station 110. In some aspects, the base station 110 includes atransceiver. The transceiver may include any combination of antenna(s)234, modulators and/or demodulators 232, MIMO detector 236, receiveprocessor 238, transmit processor 220, and/or TX MIMO processor 230. Thetransceiver may be used by a processor (e.g., controller/processor 240)and memory 242 to perform aspects of any of the methods described herein(for example, as described with reference to FIGS. 5A-5C, FIG. 6, FIG.7, and/or FIG. 8).

Controller/processor 240 of base station 110, controller/processor 280of UE 120, and/or any other component(s) of FIG. 2 may perform one ormore techniques associated with an enhanced measurement and reportconfiguration for full-duplex operation, as described in more detailelsewhere herein. For example, controller/processor 240 of base station110, controller/processor 280 of UE 120, and/or any other component(s)of FIG. 2 may perform or direct operations of, for example, process 700of FIG. 7, process 800 of FIG. 8, and/or other processes as describedherein. Memories 242 and 282 may store data and program codes for basestation 110 and UE 120, respectively. In some aspects, memory 242 and/ormemory 282 may include a non-transitory computer-readable medium storingone or more instructions (e.g., code and/or program code) for wirelesscommunication. For example, the one or more instructions, when executed(e.g., directly, or after compiling, converting, and/or interpreting) byone or more processors of the base station 110 and/or the UE 120, maycause the one or more processors, the UE 120, and/or the base station110 to perform or direct operations of, for example, process 700 of FIG.7, process 800 of FIG. 8, and/or other processes as described herein. Insome aspects, executing instructions may include running theinstructions, converting the instructions, compiling the instructions,and/or interpreting the instructions, among other examples.

In some aspects, UE 120 may include means for determining one or moremeasurements associated with a beam search performed during a downlinkbeam management process, means for transmitting, to base station 110, areport that indicates one or more candidate downlink receive beams,candidate uplink transmit beams, or candidate downlink receive anduplink transmit beam pairs suitable for full-duplex operation based atleast in part on the one or more measurements, and/or the like. In someaspects, such means may include one or more components of UE 120described in connection with FIG. 2, such as controller/processor 280,transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252,DEMOD 254, MIMO detector 256, receive processor 258, and/or the like.

In some aspects, base station 110 may include means for transmitting oneor more downlink signals in one or more beam sweeps during a downlinkbeam management process, means for receiving, from UE 120, a report thatindicates one or more candidate downlink receive beams, candidate uplinktransmit beams, or candidate downlink receive and uplink transmit beampairs suitable for full-duplex operation based at least in part on oneor more measurements associated with a beam search performed by theother wireless node during the downlink beam management process, and/orthe like. In some aspects, such means may include one or more componentsof base station 110 described in connection with FIG. 2, such as antenna234, DEMOD 232, MIMO detector 236, receive processor 238,controller/processor 240, transmit processor 220, TX MIMO processor 230,MOD 232, antenna 234, and/or the like.

While blocks in FIG. 2 are illustrated as distinct components, thefunctions described above with respect to the blocks may be implementedin a single hardware, software, or combination component or in variouscombinations of components. For example, the functions described withrespect to the transmit processor 264, the receive processor 258, and/orthe TX MIMO processor 266 may be performed by or under the control ofcontroller/processor 280.

As indicated above, FIG. 2 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 2.

FIG. 3 is a diagram illustrating examples 300 of radio access networks,in accordance with the present disclosure.

As shown by reference number 305, a traditional (e.g., 3G, 4G, LTE,and/or the like) radio access network may include multiple base stations310 (e.g., access nodes (AN)), where each base station 310 communicateswith a core network via a wired backhaul link 315, such as a fiberconnection. A base station 310 may communicate with a UE 320 via anaccess link 325, which may be a wireless link. In some aspects, a basestation 310 shown in FIG. 3 may be a base station 110 shown in FIG. 1.In some aspects, a UE 320 shown in FIG. 3 may be a UE 120 shown in FIG.1.

As shown by reference number 330, a radio access network may include awireless backhaul network, sometimes referred to as an integrated accessand backhaul (IAB) network. In an IAB network, at least one base stationis an anchor base station 335 that communicates with a core network viaa wired backhaul link 340, such as a fiber connection. An anchor basestation 335 may also be referred to as an IAB donor (or IAB-donor). TheIAB network may include one or more non-anchor base stations 345,sometimes referred to as relay base stations or IAB nodes (orIAB-nodes). The non-anchor base station 345 may communicate directly orindirectly with the anchor base station 335 via one or more backhaullinks 350 (e.g., via one or more non-anchor base stations 345) to form abackhaul path to the core network for carrying backhaul traffic.Backhaul link 350 may be a wireless link. Anchor base station(s) 335and/or non-anchor base station(s) 345 may communicate with one or moreUEs 355 via access links 360, which may be wireless links for carryingaccess traffic. In some aspects, an anchor base station 335 and/or anon-anchor base station 345 shown in FIG. 3 may be a base station 110shown in FIG. 1. In some aspects, a UE 355 shown in FIG. 3 may be a UE120 shown in FIG. 1.

As shown by reference number 365, in some aspects, a radio accessnetwork that includes an IAB network may utilize millimeter wavetechnology and/or directional communications (e.g., beamforming and/orthe like) for communications between base stations and/or UEs (e.g.,between two base stations, between two UEs, and/or between a basestation and a UE). For example, wireless backhaul links 370 between basestations may use millimeter wave signals to carry information and/or maybe directed toward a target base station using beamforming and/or thelike. Similarly, the wireless access links 375 between a UE and a basestation may use millimeter wave signals and/or may be directed toward atarget wireless node (e.g., a UE and/or a base station). In this way,inter-link interference may be reduced.

The configuration of base stations and UEs in FIG. 3 is shown as anexample, and other examples are contemplated. For example, one or morebase stations illustrated in FIG. 3 may be replaced by one or more UEsthat communicate via a UE-to-UE access network (e.g., a peer-to-peernetwork, a device-to-device network, and/or the like). In this case, aUE that is directly in communication with a base station (e.g., ananchor base station or a non-anchor base station) may be referred to asan anchor node.

As indicated above, FIG. 3 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 3.

FIG. 4 is a diagram illustrating an example 400 of an IAB networkarchitecture, in accordance with the present disclosure.

As shown in FIG. 4, an IAB network may include an IAB donor 405 (shownas IAB-donor) that connects to a core network via a wired connection(shown as a wireline backhaul). For example, an Ng interface of an IABdonor 405 may terminate at a core network. Additionally, oralternatively, an IAB donor 405 may connect to one or more devices ofthe core network that provide a core access and mobility managementfunction (e.g., AMF). In some aspects, an IAB donor 405 may include abase station 110, such as an anchor base station, as described above inconnection with 3. As shown, an IAB donor 405 may include a central unit(CU), which may perform access node controller (ANC) functions, AMFfunctions, and/or the like. The CU may configure a distributed unit (DU)of the IAB donor 405 and/or may configure one or more IAB nodes 410(e.g., an MT and/or a DU of an IAB node 410) that connect to the corenetwork via the IAB donor 405. Thus, a CU of an IAB donor 405 maycontrol and/or configure the entire IAB network that connects to thecore network via the IAB donor 405, such as by using control messagesand/or configuration messages (e.g., a radio resource control (RRC)configuration message, an F1 application protocol (F1AP) message, and/orthe like).

As further shown in FIG. 4, the IAB network may include IAB nodes 410(shown as IAB-node 1, IAB-node 2, and IAB-node 3) that connect to thecore network via the IAB donor 405. As shown, an IAB node 410 mayinclude mobile termination (MT) functions (also sometimes referred to asUE functions (UEF)) and may include DU functions (also sometimesreferred to as access node functions (ANF)). The MT functions of an IABnode 410 (e.g., a child node) may be controlled and/or scheduled byanother IAB node 410 (e.g., a parent node of the child node) and/or byan IAB donor 405. The DU functions of an IAB node 410 (e.g., a parentnode) may control and/or schedule other IAB nodes 410 (e.g., child nodesof the parent node) and/or UEs 120. Thus, a DU may be referred to as ascheduling node or a scheduling component, and an MT may be referred toas a scheduled node or a scheduled component. In some aspects, an IABdonor 405 may include DU functions and not MT functions. That is, an IABdonor 405 may configure, control, and/or schedule communications of IABnodes 410 and/or UEs 120. A UE 120 may include only MT functions, andnot DU functions. That is, communications of a UE 120 may be controlledand/or scheduled by an IAB donor 405 and/or an IAB node 410 (e.g., aparent node of the UE 120).

When a first node controls and/or schedules communications for a secondnode (e.g., when the first node provides DU functions for the secondnode's MT functions), the first node may be referred to as a parent nodeof the second node, and the second node may be referred to as a childnode of the first node. A child node of the second node may be referredto as a grandchild node of the first node. Thus, a DU function of aparent node may control and/or schedule communications for child nodesof the parent node. A parent node may be an IAB donor 405 or an IAB node410, and a child node may be an IAB node 410 or a UE 120. Communicationsof an MT function of a child node may be controlled and/or scheduled bya parent node of the child node.

As further shown in FIG. 4, a link between a UE 120 (e.g., which onlyhas MT functions, and not DU functions) and an IAB donor 405, or betweena UE 120 and an IAB node 410, may be referred to as an access link 415.Access link 415 may be a wireless access link that provides a UE 120with radio access to a core network via an IAB donor 405, and optionallyvia one or more IAB nodes 410. Thus, the network illustrated in FIG. 4may be referred to as a multi-hop network or a wireless multi-hopnetwork.

As further shown in FIG. 4, a link between an IAB donor 405 and an IABnode 410 or between two IAB nodes 410 may be referred to as a backhaullink 420. Backhaul link 420 may be a wireless backhaul link thatprovides an IAB node 410 with radio access to a core network via an IABdonor 405, and optionally via one or more other IAB nodes 410. In an IABnetwork, network resources for wireless communications (e.g., timeresources, frequency resources, spatial resources, and/or the like) maybe shared between access links 415 and backhaul links 420. In someaspects, a backhaul link 420 may be a primary backhaul link or asecondary backhaul link (e.g., a backup backhaul link). In some aspects,a secondary backhaul link may be used if a primary backhaul link fails,becomes congested, becomes overloaded, and/or the like. For example, abackup link 425 between IAB-node 2 and IAB-node 3 may be used forbackhaul communications if a primary backhaul link between IAB-node 2and IAB-node 1 fails. As used herein, an IAB donor 405 or an IAB node410 may be referred to as a node or a wireless node.

As indicated above, FIG. 4 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 4.

FIGS. 5A-5C are diagrams illustrating examples 500, 510, 520 offull-duplex (FD) communication. As shown in FIGS. 5A-5C, examples 500,510, 520 include one or more UEs 502 in communication with one or morebase stations 504, TRPs 504, and/or the like in a wireless network thatsupports full-duplex communication. However, it will be appreciated thatthe devices shown in FIGS. 5A-5C are exemplary only, and that thewireless network may support full-duplex communication between otherdevices (e.g., between a UE and a base station or TRP, between a mobiletermination node and a control node, between an IAB child node and anIAB parent node, between a scheduled node and a scheduling node, and/orthe like).

As shown in FIG. 5A, example 500 includes a UE 502 in communication withtwo base stations (e.g., TRPs) 504-1, 504-2. As shown in FIG. 5A, the UE502 may transmit one or more uplink transmissions to base station 504-1and may concurrently receive one or more downlink transmission from basestation 504-2. Accordingly, in the example 500 shown in FIG. 5A,full-duplex communication is enabled for the UE 502, which may beoperating as a full-duplex node, but not for the base stations 504-1,504-2, which may be operating as half-duplex nodes. Additionally, oralternatively, as shown in FIG. 5B, example 510 includes two UEs, UE1502-1 and UE2 502-2 in communication with a base station 504. In thiscase, the base station 504 may transmit one or more downlinktransmissions to the UE1 502-1 and may concurrently receive one or moreuplink transmissions from the UE2 502-2. Accordingly, in the example 510shown in FIG. 5B, full-duplex communication is enabled for the basestation 504, which may be operating as a full-duplex node, but not forthe UE1 502-1 and UE2 502-2, which may be operating as half-duplexnodes. Additionally, or alternatively, as shown in FIG. 5C, example 520includes a UE 502 in communication with a base station 504. In thiscase, the base station 504 may transmit, and the UE 502 may receive, oneor more downlink transmissions concurrently with the UE 502transmitting, and the base station 504 receiving, one or more uplinktransmissions. Accordingly, in the example 520 shown in FIG. 5C,full-duplex communication is enabled for both the UE 502 and the basestation 504, each of which is operating as a full-duplex node.

The present disclosure generally relates to improving the manner inwhich flexible time-division duplexing (TDD) operates to supportfull-duplex communication, which generally refers to simultaneous uplinkand downlink transmissions in Frequency Range 2 (FR2), in wirelessnetworks that support beamformed communication, and/or the like. In someaspects, flexible TDD capabilities that support full-duplexcommunication may be present at a scheduling node (e.g., a base station,a TRP, a control node, a parent node, and/or the like), a scheduled node(e.g., a UE, an MT node, a child node, and/or the like), or both. Forexample, at a UE, uplink transmission may be from one antenna panel anddownlink reception may be in another antenna panel. In general,full-duplex communication may be conditional on a beam separation of anuplink beam and a downlink beam at the respective antenna panels.Accordingly, improving the manner in which the uplink beam and thedownlink beam are selected to enable full-duplex communication isdesirable. Utilizing full-duplex communication may provide reducedlatency by allowing a full-duplex node to transmit or receive a downlinksignal in an uplink-only slot, or to transmit or receive an uplinksignal in a downlink-only slot, which may enable latency savings. Inaddition, full-duplex communication may enhance spectral efficiency orthroughput per cell or per UE, may enable more efficient resourceutilization by simultaneously utilizing time and frequency resources foruplink and downlink communication, and/or the like.

As described above, full-duplex communication may be conditional,depending on beam separation between uplink and downlink beams to assistin limiting or reducing self-interference that may occur duringfull-duplex communication. In other words, full-duplex communication maybe restricted to not use certain uplink and downlink beam pairs that mayresult in self-interference, which may occur when a transmitted signalleaks into a receive port, when an object reflects a transmitted signalback to a receive port (e.g., causing a clutter echo effect), and/or thelike. Accordingly, whether full-duplex communication can be performedmay be dependent on selecting suitable uplink and downlink beam pairs(e.g., transmit and receive beams that are on different antenna panels)to reduce or minimize self-interference (especially clutter echo) viaspatial isolation. In some aspects, determining the uplink and downlinkbeams that are separated on respective antenna panels may provide areliable full-duplex communication by selecting beam pairs that minimizeor reduce self-interference.

Accordingly, measuring self-interference at a wireless node havingfull-duplex capabilities may assist in determining uplink and downlinkbeam pairs that may support full-duplex communication. For example, aUE, an IAB child node, and/or the like may obtain self-interferencemeasurements to determine one or more candidate uplink transmit beamsthat can be paired with one or more candidate downlink receive beams.Additionally, or alternatively, a base station, an IAB parent node,and/or the like may obtain self-interference measurements to determineone or more candidate uplink receive beams that can be paired with oneor more candidate downlink transmit beams. In general, to obtain theself-interference measurements, a wireless node with full-duplexcapabilities may transmit a signal from a first set of antennas in oneor more transmit beam directions, and the wireless node may concurrentlymeasure a received signal (e.g., a reflected or leaked transmit signal)on a second set of antennas in one or more receive beam directions,where the first set of antennas may be different from or the same as thesecond set of antennas.

Some aspects described herein relate to techniques and apparatuses thatmay use an enhanced measurement and reporting configuration to determineone or more candidate downlink receive beams, candidate uplink transmitbeams, and/or candidate downlink receive and uplink transmit beam pairsthat may be suitable for full-duplex operation. For example, during adownlink beam management process, a first wireless node (e.g., a UE, anMT node, a child node, a scheduled node, and/or the like) may perform abeam search based at least in part on one or more downlink signalstransmitted in one or more beam sweeps by a second wireless node (e.g.,a base station, a control node, a parent node, a scheduling node, and/orthe like). Accordingly, in some aspects, the beam search may include oneor more measurement opportunities that enable the first wireless node todetermine candidate downlink and/or uplink beams that may be suitablefor full-duplex operation using an exhaustive search based at least inpart on a synchronization signal block (SSB), a channel stateinformation reference signal (CSI-RS), and/or the like, wherein one ormore of the candidate downlink beams may be pairable with one or more ofthe candidate uplink beams. For example, the first wireless node maycommunicate with the second wireless node using a particular downlink(receive) beam and a particular uplink (transmit) beam during an initialaccess procedure (e.g., a random access channel (RACH) procedure), andthe beam search may be performed during the downlink beam managementprocess to obtain measurements to identify downlink and/or uplink beamsthat may potentially satisfy one or more selection criteria associatedwith full-duplex operation. For example, the identified beam(s) may bepairable as a transmit beam with the receive beam for the initial accessprocedure. Accordingly, the first wireless node may transmit, to thesecond wireless node, a report indicating the candidate downlink and/oruplink beams and/or candidate downlink and uplink beam pairs suitablefor full-duplex operation, and the first wireless node may subsequentlyperform one or more self-interference measurements to refine orotherwise identify one or more downlink and uplink beam pairs that aresuitable for full-duplex operation. In this way, the enhancedmeasurement and report configuration may enable the first wireless nodeand the second wireless node to identify suitable candidate beams thatmay potentially enable full-duplex operation and also provide candidatebeam information for a self-interference measurement procedure, whichcan save resources associated with performing the self-interferencemeasurement procedure by avoiding a fully exhaustive transmit andreceive beam sweep and search.

As indicated above, FIGS. 5A-5C are provided as one or more examples.Other examples may differ from what is described with regard to FIGS.5A-5C.

FIG. 6 is a diagram illustrating one or more examples 600 associatedwith an enhanced measurement and report configuration for full-duplexoperation, in accordance with the present disclosure. As shown in FIG.6, example(s) 600 includes a first wireless node 602 in communicationwith a second wireless node 604 in a wireless network (e.g., wirelessnetwork 100, radio access network 305, 330, 365, and/or the like). Insome aspects, as shown in FIG. 6, the wireless node 602 may be a UE(e.g., UE 120, 502, and/or the like) and the wireless node 604 may be abase station (e.g., base station 110, 504, and/or the like).Additionally, or alternatively, in some aspects, the wireless nodes maycorrespond to other suitable devices that can communicate on an uplinkand a downlink (e.g., the wireless node 602 may correspond to an IABnode, a child node, a scheduled node, and/or the like, and the wirelessnode 604 may correspond to a control node, a parent node, a schedulingnode, and/or the like).

In some aspects, as described herein, the wireless nodes 602, 604 maycommunicate with one another using beams, and at least the wireless node602 may have full-duplex communication capabilities. For example, asdescribed above, the wireless nodes 602, 604 may communicate in awireless network that supports flexible time-division duplexing (TDD)and full-duplex communication, which generally refers to simultaneousuplink and downlink transmissions. However, as described above,full-duplex communication may be conditional on a beam separation (e.g.,spatial isolation) between an uplink beam and a downlink beam atrespective antenna panels. Accordingly, as described herein, thewireless nodes 602, 604 may utilize one or more measurements associatedwith a beam search performed during a downlink beam management processto identify candidate downlink beams, candidate uplink beams, and/orcandidate downlink and uplink beam pairs that may provide sufficientbeam separation to enable full-duplex communication. In particular,because the wireless nodes 602, 604 communicate in a wireless networkaccording to a flexible TDD configuration, uplink beam characteristicscan be inferred from downlink beam measurements (and vice versa) becauseelectrical characteristics at an antenna (e.g., relative phase, fading,gain, radiation pattern, impedance, bandwidth, resonant frequency,polarization, and/or the like) may be the same or substantially similarregardless of whether the antenna is transmitting or receiving, due tothe principle of channel reciprocity in a TDD system. Accordingly, asdescribed herein, the downlink beam management process may be used toidentify candidate beams that may be suitable for use as an uplink beamand/or a downlink beam in full-duplex operation.

For example, as shown in FIG. 6, and by reference number 610, thewireless node 604 may transmit, and the wireless node 602 may receive,enhanced measurement configuration information for a downlink beammanagement process. For example, during the downlink beam managementprocess, the wireless node 604 may be configured to transmit one or moredownlink signals, such as SSBs, CSI-RSs, and/or the like, in one or morebeam sweeps in which the downlink signal(s) are transmitted in variousdirections (e.g., over a coverage area provided by the wireless node604). Accordingly, within a measurement window, the wireless node 602may select a best beam (e.g., a beam having a highest reference signalreceived power (RSRP) measurement) to be used to communicate with thewireless node 604 during an initial access procedure, such as a RACHprocedure. However, a measurement configuration used to select the bestbeam to be used during the initial access procedure is generally limitedto selecting a beam pair for the wireless nodes 602, 604 that can beused for downlink and uplink transmission/reception. Accordingly, asdescribed herein, the enhanced measurement configuration may provide thewireless node 602 with additional measurement opportunities to identifycandidate downlink receive beams, candidate uplink transmit beams,and/or candidate downlink receive and uplink transmit beam pairs thatcan be used for full-duplex communication (e.g., spatially isolateddownlink and uplink beams that are associated with different antennapanels such the downlink beam can be used for downlink reception onlyand the uplink beam can be used for uplink transmission only).

For example, in some aspects, the enhanced measurement configurationinformation may enable the wireless node 602 to perform an exhaustivesearch of SSBs that are transmitted in one or more beam sweeps. Forexample, as described above, the wireless node 602 may initially selecta best beam within a measurement window to communicate with the wirelessnode 604 during an initial access procedure, and the best beam maygenerally correspond to a particular SSB transmitted by the wirelessnode 604. Accordingly, during the initial access procedure, the wirelessnode 602 may be camped on a cell provided by the wireless node 604 usingthe SSB corresponding to the best beam. However, as described above, theSSB corresponding to the best beam is only for one direction (e.g., areceiver direction), and limiting downlink beam management measurementsto the SSB corresponding to the best beam may result in the wirelessnode 602 missing opportunities to measure other SSBs that may be goodcandidates for supporting full-duplex operation, provide a strong beam,and/or the like. In some aspects, the enhanced measurement configurationinformation may therefore enable the wireless node 602 to perform a moreexhaustive SSB search by providing the wireless node 602 with one ormore measurement opportunities associated with SSB resources on whichthe wireless node 602 is not scheduled for data transmissions.Additionally, or alternatively, the wireless node 604 may configure oneor more receive beams that the wireless node 602 is to measure duringthe receive beam search. In this way, the wireless node 602 can performthe receive beam search using the one or more measurement opportunitiesassociated with the SSB resources on which the wireless node 602 is notscheduled for data transmissions to identify candidate downlink beams,candidate uplink beams, and/or candidate downlink and uplink beam pairsthat may be suitable for full-duplex operation according to receivebeams that are measured based at least in part on an exhaustive SSBsearch. For example, by providing measurement opportunities where thewireless node 602 is not scheduled on SSB resources, the wireless node602 can perform a receive beam search, which may potentially be used asa full-duplex uplink (transmit) beam, a full-duplex downlink (receive)beam, or an uplink beam paired with the SSB receive beam used for theinitial access procedure (e.g., RACH procedure) based on the channelreciprocity assumption in a TDD communication system. In anotherexample, the wireless node 604 may configure one or more receive beamsfor the wireless node 602 to perform a receive beam search on the SSBresources that may be potentially used as a full-duplex uplink transmitbeam and/or a full-duplex downlink receive beam.

In some aspects, the enhanced measurement configuration information usedto enable the wireless node 602 to identify the candidate downlinkbeams, candidate uplink beams, and/or candidate downlink and uplink beampairs that may be suitable for full-duplex operation may be based atleast in part on assistance information that the wireless node 602provides to the wireless node 604. For example, in some aspects, theassistance information provided by the wireless node 602 may enable thewireless node 604 to configure one or more measurement opportunities toenable the exhaustive SSB search. For example, in some aspects, thewireless node 602 may transmit, to the wireless node 604, a request forone or more measurement opportunities to search for receive beams, otherthan the receive beam used during the initial access procedure, usingSSBs. The requested receive beams could be potential candidate receivebeams that are more suitable than the beam used in the initial accessprocedure or could be potential candidate uplink beams that may bepaired with a downlink receive beam used in the initial accessprocedure. In some aspects, the wireless node 602 may further providethe wireless node 604 with configuration information related to thereceive beams associated with the requested measurement opportunities.For example, the receive beams associated with the measurementopportunities requested by the wireless node 602 may correspond toreceive beams that could potentially be paired as a transmit beam withthe receive beam used during the initial access procedure. In this case,the wireless node 602 may already be configured with a (downlink)receive beam that is used during the initial access procedure, wherebythe wireless node 602 may request opportunities to measure other receivebeams that may then be configured as (uplink) transmit beams paired withthe downlink receive beam (e.g., based on uplink/downlink channelreciprocity in a TDD communication system). Additionally, oralternatively, the measurement opportunities requested by the wirelessnode 602 may exclude one or more receive beams that cannot be suitablypaired with the receive beam used during the initial access procedure(e.g., other receive beams that are associated with the same antennapanel).

Additionally, or alternatively, in some aspects, the enhancedmeasurement configuration information may configure one or more CSI-RSmeasurements using assistance information that the wireless node 602reports or otherwise provides to the wireless node 604. For example,rather than requesting measurement opportunities associated with anexhaustive SSB search (e.g., as described above), the wireless node 602may request a CSI-RS measurement configuration in which the wirelessnode 604 sweeps at least one CSI-RS using a set of one or more transmitbeams (e.g., downlink transmit beams) that can potentially be paired infull-duplex operation with a transmit beam used by the wireless node 604during the initial access procedure. In this way, the wireless node 602may be provided with one or more measurement opportunities to checkother receive beams that may potentially be paired in full-duplexoperation with the receive beam used by the wireless node 602 during theinitial access procedure.

Accordingly, as described herein, the enhanced measurement configurationinformation may enable the wireless node 602 to identify one or morecandidate downlink beams (e.g., downlink receive beams), candidateuplink beams (e.g., uplink transmit beams), and/or candidate downlinkreceive and uplink transmit beam pairs that may potentially be suitablefor full-duplex operation. In general, the enhanced measurementconfiguration information may be used during a beam search performedduring a downlink beam management process, which may occur during aninitial access procedure, after completing the initial access procedureand while the wireless nodes 602, 604 are communicating in a half-duplexmode (e.g., prior to enabling full-duplex communication), and/or thelike. Accordingly, the enhanced measurement configuration informationmay enable the wireless node 602 to identify an initial set of candidatedownlink and/or uplink beams that can subsequently be refined toidentify one or more downlink and uplink beam pairs and/or candidatedownlink receive and uplink transmit beam pairs suitable for full-duplexoperation (e.g., based at least in part on one or more self-interferencemeasurements).

For example, as further shown in FIG. 6, and by reference number 620,the wireless node 604 may transmit, and the wireless node 602 mayreceive, one or more downlink signals that are transmitted in one ormore beam sweeps according to the enhanced measurement configurationinformation. For example, in some aspects, the one or more downlinksignals may include one or more SSBs, one or more CSI-RSs, and/or thelike that are transmitted in one or more beam sweeps to enable thewireless node 602 to perform an exhaustive receive beam search. Forexample, as described above, the one or more beam sweeps may provide thewireless node 602 with one or more measurement opportunities associatedwith SSB resources on which the wireless node 602 is not scheduled fordata transmissions, receive beams that can potentially be paired (as atransmit beam) with a receive beam used for initial access, and/or thelike.

As further shown in FIG. 6, and by reference number 630, the wirelessnode 602 may transmit, and the wireless node 604 may receive, a reportindicating one or more candidate downlink receive beams, one or morecandidate uplink transmit beams, and/or one or more candidate downlinkreceive and uplink transmit beam pairs that satisfy one or morefull-duplex selection criteria. For example, in some aspects, thefull-duplex selection criteria may be based at least in part on whethera particular receive beam is associated with sufficient spatialisolation or beam separation from other receive beams to potentiallyenable the receive beam to be configured as a downlink receive beam oran uplink transmit beam in full-duplex operation. Accordingly, inaddition to considering measurements such as RSRP,signal-to-interference-plus-noise ratio (SINR), and/or the like, thewireless node 602 may determine measurement quantities such as angle ofarrival, spatial correlation, and/or other measurement quantities thatrelate to spatial properties. Additionally, or alternatively, the reportprovided by the wireless node 602 may identify candidate downlink and/oruplink beams that are associated with SSB beams, CSI-RS beams, and/orthe like received at different antenna panels associated with thewireless node 602 (e.g., because a downlink receive beam and an uplinktransmit beam that are paired in full-duplex operation are generallyassociated with different antenna panels). Additionally, oralternatively, the candidate downlink and/or uplink beams identified inthe report provided by the wireless node 602 may exclude one or morebeams that are incapable of being paired in full-duplex operation.

Furthermore, in some aspects, the report provided by the wireless node602 may be configured to provide the wireless node 604 with morepotential options regarding candidate beams that may be used infull-duplex operation. For example, in some cases, the wireless node 604may transmit the same SSB in multiple repetitions across multipleperiods (e.g., to enable the wireless node 602 to perform a receive beamsearch for the SSB). In this case, the wireless node 602 may potentiallyreceive the same SSB using more than one receive beam. Accordingly, thewireless node 602 may report more than one candidate receive beam and/ormore than one metric for the same SSB to provide the wireless node 604with more candidate beams that may be configured for full-duplexoperation. In this way, the wireless node 604 may identify candidatebeam pairs that are best suited to full-duplex operation rather thanlimiting consideration to only the candidate beam(s) with the highestRSRP and/or the like. For example, in some cases, a best beam (e.g., acandidate beam with the highest RSRP) might not be sufficientlyseparated from other beams of other antenna panels, which may make thebest beam unsuitable for full-duplex operation. Accordingly, in someaspects, reporting multiple candidate beams and corresponding metricsfor the same SSB, CSI-RS, and/or the like may provide the wireless node604 with more options to select a candidate beam pair that is suitablefor full-duplex operation.

For example, in some aspects, the wireless node 604 may identify one ormore candidate downlink and uplink beam pairs that may be suitable forfull-duplex operation based at least in part on the candidate downlinkreceive beams and/or candidate uplink transmit beams indicated in thereport, and may transmit information configuring one or moreself-interference measurements for the one or more candidate downlinkand uplink beam pairs to the wireless node 602. The wireless node 602may then perform one or more self-interference measurements to identifyat least one downlink and uplink beam pair suitable for full-duplexoperation. For example, as described above, the self-interferencemeasurements may be obtained by transmitting a signal using a candidateuplink beam (e.g., using a first antenna panel or a first set ofantennas) and measuring a received signal (e.g., a reflected or leakedtransmitted signal) using a second antenna panel or a second set ofantennas in one or more receive beam directions that may potentially bepaired with the candidate uplink beam in full-duplex operation. In thisway, the wireless node 602 may sweep through transmitting and receivingfor the candidate full-duplex beams to perform a refinedself-interference measurement that can be used to identify suitabledownlink and uplink beam pairs (e.g., beam pairs for which the receivedsignal satisfies a cross-beam interference threshold) to enablefull-duplex communication with the wireless node 604.

As indicated above, FIG. 6 is provided as one or more examples. Otherexamples may differ from what is described with respect to FIG. 6.

FIG. 7 is a diagram illustrating an example process 700 performed, forexample, by a wireless node, in accordance with the present disclosure.Example process 700 is an example where the wireless node (e.g., UE 120,IAB node 410, an IAB child node, UE 502, a scheduled node, wireless node602, and/or the like) performs operations associated with an enhancedmeasurement and report configuration for full-duplex operation.

As shown in FIG. 7, in some aspects, process 700 may include determiningone or more measurements associated with a beam search performed duringa downlink beam management process (block 710). For example, thewireless node may determine (e.g., using controller/processor 280,memory 282, and/or the like) one or more measurements associated with abeam search performed during a downlink beam management process, asdescribed above.

As further shown in FIG. 7, in some aspects, process 700 may includetransmitting, to another wireless node, a report that indicates one ormore candidate downlink receive beams, candidate uplink transmit beams,or candidate downlink receive and uplink transmit beam pairs suitablefor full-duplex operation, based at least in part on the one or moremeasurements (block 720). For example, the wireless node may transmit(e.g., using controller/processor 280, transmit processor 264, TX MIMOprocessor 266, MOD 254, antenna 252, memory 282, and/or the like), toanother wireless node, a report that indicates one or more candidatedownlink receive beams, candidate uplink transmit beams, or candidatedownlink receive and uplink transmit beam pairs suitable for full-duplexoperation, based at least in part on the one or more measurements, asdescribed above.

Process 700 may include additional aspects, such as any single aspect orany combination of aspects described below and/or in connection with oneor more other processes described elsewhere herein.

In a first aspect, the beam search includes one or more measurementopportunities associated with one or more SSB resources on which thewireless node is not scheduled for data transmissions.

In a second aspect, alone or in combination with the first aspect, theone or more measurements include one or more receive beam measurementsassociated with the one or more SSB resources.

In a third aspect, alone or in combination with one or more of the firstand second aspects, process 700 includes receiving, from the otherwireless node, information configuring one or more receive beams to bemeasured during the beam search.

In a fourth aspect, alone or in combination with one or more of thefirst through third aspects, process 700 includes transmitting, to theother wireless node, a request for one or more measurement opportunitiesto search for one or more receive beams, other than a receive beam usedfor initial access, using one or more SSB resources.

In a fifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, the one or more receive beams correspond tocandidate transmit beams to be paired with the receive beam used forinitial access.

In a sixth aspect, alone or in combination with one or more of the firstthrough fifth aspects, process 700 includes transmitting, to the otherwireless node, a request to beam sweep at least one CSI-RS using one ormore candidate transmit beams to be paired in full-duplex operation withthe receive beam used for initial access.

In a seventh aspect, alone or in combination with one or more of thefirst through sixth aspects, one or more of the candidate downlinkreceive beams or the candidate uplink transmit beams are associated withone or more metrics that satisfy one or more selection criteriaassociated with full-duplex operation.

In an eighth aspect, alone or in combination with one or more of thefirst through seventh aspects, one or more of the candidate downlinkreceive beams and the candidate uplink transmit beams are associatedwith different panels.

In a ninth aspect, alone or in combination with one or more of the firstthrough eighth aspects, the report identifies multiple beams that can beused to receive an SSB transmitted in multiple repetitions.

In a tenth aspect, alone or in combination with one or more of the firstthrough ninth aspects, the report includes metrics associated with themultiple beams that can be used to receive the same SSB.

In an eleventh aspect, alone or in combination with one or more of thefirst through tenth aspects, process 700 includes receiving, from theother wireless node, information configuring one or moreself-interference measurements based at least in part on the one or morecandidate downlink receive beams or candidate uplink transmit beamsindicated in the report, and performing the one or moreself-interference measurements to identify at least one downlink anduplink beam pair suitable for full-duplex operation.

In a twelfth aspect, alone or in combination with one or more of thefirst through eleventh aspects, the wireless node includes a UE, an IABnode, a child node, a scheduled node, and/or the like, and the otherwireless node includes a base station, a control node, a parent node, ascheduling node, and/or the like.

Although FIG. 7 shows example blocks of process 700, in some aspects,process 700 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 7.Additionally, or alternatively, two or more of the blocks of process 700may be performed in parallel.

FIG. 8 is a diagram illustrating an example process 800 performed, forexample, by a wireless node, in accordance with the present disclosure.Example process 800 is an example where the wireless node (e.g., basestation 110, IAB node 410, an TAB parent node, base station or TRP 504,a scheduling node, wireless node 604, and/or the like) performsoperations associated with an enhanced measurement and reportconfiguration for full-duplex operation.

As shown in FIG. 8, in some aspects, process 800 may includetransmitting one or more downlink signals in one or more beam sweepsduring a downlink beam management process (block 810). For example, thewireless node may transmit (e.g., using controller/processor 240,transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234,memory 242, and/or the like) one or more downlink signals in one or morebeam sweeps during a downlink beam management process, as describedabove.

As further shown in FIG. 8, in some aspects, process 800 may includereceiving, from another wireless node, a report that indicates one ormore candidate downlink receive beams, candidate uplink transmit beams,or candidate downlink receive and uplink transmit beam pairs suitablefor full-duplex operation, based at least in part on one or moremeasurements associated with a beam search performed by the otherwireless node during the downlink beam management process (block 820).For example, the wireless node may receive (e.g., using antenna 234,DEMOD 232, MIMO detector 236, receive processor 238,controller/processor 240, memory 242, and/or the like) may receive, fromanother wireless node, a report that indicates one or more candidatedownlink receive beams, candidate uplink transmit beams, or candidatedownlink receive and uplink transmit beam pairs suitable for full-duplexoperation, based at least in part on one or more measurements associatedwith a beam search performed by the other wireless node during thedownlink beam management process, as described above.

Process 800 may include additional aspects, such as any single aspect orany combination of aspects described below and/or in connection with oneor more other processes described elsewhere herein.

In a first aspect, the beam search includes one or more measurementopportunities associated with one or more SSB resources on which theother wireless node is not scheduled for data transmissions.

In a second aspect, alone or in combination with the first aspect, theone or more measurements include one or more receive beam measurementsassociated with the one or more SSB resources.

In a third aspect, alone or in combination with one or more of the firstand second aspects, process 800 includes transmitting, to the otherwireless node, information configuring one or more receive beams to bemeasured during the beam search.

In a fourth aspect, alone or in combination with one or more of thefirst through third aspects, process 800 includes receiving, from theother wireless node, a request for one or more measurement opportunitiesto search for one or more receive beams, other than a receive beam usedfor initial access, using one or more SSB resources.

In a fifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, the one or more receive beams correspond tocandidate transmit beams to be paired with the receive beam used forinitial access.

In a sixth aspect, alone or in combination with one or more of the firstthrough fifth aspects, process 800 includes receiving, from the otherwireless node, a request to beam sweep at least one CSI-RS using one ormore candidate transmit beams to be paired in full-duplex operation withthe downlink receive beam used for initial access.

In a seventh aspect, alone or in combination with one or more of thefirst through sixth aspects, one or more of the candidate downlinkreceive beams or the candidate uplink transmit beams are associated withone or more metrics that satisfy one or more selection criteriaassociated with full-duplex operation.

In an eighth aspect, alone or in combination with one or more of thefirst through seventh aspects, one or more of the candidate downlinkreceive beams and the candidate uplink transmit beams are associatedwith different panels of the other wireless node.

In a ninth aspect, alone or in combination with one or more of the firstthrough eighth aspects, the report identifies multiple beams that theother wireless node can use to receive an SSB transmitted in multiplerepetitions.

In a tenth aspect, alone or in combination with one or more of the firstthrough ninth aspects, the report includes metrics associated with themultiple beams that the other wireless node can use to receive the sameSSB.

In an eleventh aspect, alone or in combination with one or more of thefirst through tenth aspects, process 800 includes transmitting, to theother wireless node, information configuring one or moreself-interference measurements based at least in part on the one or morecandidate downlink receive beams or candidate uplink transmit beamsindicated in the report, and receiving, from the other wireless node,information identifying at least one downlink and uplink beam pairsuitable for full-duplex operation based at least in part on the one ormore self-interference measurements.

In a twelfth aspect, alone or in combination with one or more of thefirst through eleventh aspects, the wireless node includes one or moreof a base station, a control node, a parent node, or a scheduling node,and the other wireless node includes one or more of a UE, an IAB node, achild node, or a scheduled node.

Although FIG. 8 shows example blocks of process 800, in some aspects,process 800 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 8.Additionally, or alternatively, two or more of the blocks of process 800may be performed in parallel.

The following provides an overview of some Aspects of the presentdisclosure:

Aspect 1: A method of wireless communication performed by a wirelessnode, comprising: determining one or more measurements associated with abeam search performed during a downlink beam management process; andtransmitting, to another wireless node, a report that indicates one ormore candidate downlink receive beams, candidate uplink transmit beams,or candidate downlink receive and uplink transmit beam pairs suitablefor full-duplex operation based at least in part on the one or moremeasurements.

Aspect 2: The method of Aspect 1, wherein the beam search includes oneor more measurement opportunities associated with one or more SSBresources on which the wireless node is not scheduled for datatransmissions.

Aspect 3: The method of Aspect 2, wherein the one or more measurementsinclude one or more receive beam measurements associated with the one ormore SSB resources.

Aspect 4: The method of any of Aspects 1-3, further comprising:receiving, from the other wireless node, information configuring one ormore receive beams to be measured during the beam search.

Aspect 5: The method of any of Aspects 1-4, further comprising:transmitting, to the other wireless node, a request for one or moremeasurement opportunities to search for one or more receive beams, otherthan a receive beam used for initial access, using one or more SSBresources.

Aspect 6: The method of Aspect 5, wherein the one or more receive beamscorrespond to candidate transmit beams to be paired with the receivebeam used for initial access.

Aspect 7: The method of any of Aspects 5-6, further comprising:transmitting, to the other wireless node, a request to beam sweep atleast one CSI-RS using one or more candidate transmit beams to be pairedin full-duplex operation with the receive beam used for initial access.

Aspect 8: The method of any of Aspects 1-7, wherein one or more of thecandidate downlink receive beams or the candidate uplink transmit beamsare associated with one or more metrics that satisfy one or moreselection criteria associated with full-duplex operation.

Aspect 9: The method of any of Aspects 1-8, wherein one or more of thecandidate downlink receive beams and the candidate uplink transmit beamsare associated with different panels.

Aspect 10: The method of any of Aspects 1-9, wherein the reportidentifies multiple beams that can be used to receive an SSB transmittedin multiple repetitions.

Aspect 11: The method of Aspect 10, wherein the report includes metricsassociated with the multiple beams that can be used to receive the sameSSB.

Aspect 12: The method of any of Aspects 1-11, further comprising:receiving, from the other wireless node, information configuring one ormore self-interference measurements based at least in part on the one ormore candidate downlink receive beams or candidate uplink transmit beamsindicated in the report; and performing the one or moreself-interference measurements to identify at least one downlink anduplink beam pair suitable for full-duplex operation.

Aspect 13: The method of any of Aspects 1-12, wherein the wireless nodeincludes one or more of a UE, an IAB node, a child node, or a schedulednode, and wherein the other wireless node includes one or more of a basestation, a control node, a parent node, or a scheduling node.

Aspect 14: A method of wireless communication performed by a wirelessnode, comprising: transmitting one or more downlink signals in one ormore beam sweeps during a downlink beam management process; andreceiving, from another wireless node, a report that indicates one ormore candidate downlink receive beams, candidate uplink transmit beams,or candidate downlink receive and uplink transmit beam pairs suitablefor full-duplex operation based at least in part on one or moremeasurements associated with a beam search performed by the otherwireless node during the downlink beam management process.

Aspect 15: The method of Aspect 14, wherein the beam search includes oneor more measurement opportunities associated with one or more SSBresources on which the other wireless node is not scheduled for datatransmissions.

Aspect 16: The method of Aspect 15, wherein the one or more measurementsinclude one or more receive beam measurements associated with the one ormore SSB resources.

Aspect 17: The method of any of Aspects 14-16, further comprising:transmitting, to the other wireless node, information configuring one ormore receive beams to be measured during the beam search.

Aspect 18: The method of any of Aspects 14-17, further comprising:receiving, from the other wireless node, a request for one or moremeasurement opportunities to search for one or more receive beams, otherthan a receive beam used for initial access, using one or more SSBresources.

Aspect 19: The method of Aspect 18, wherein the one or more receivebeams correspond to candidate transmit beams to be paired with thereceive beam used for initial access.

Aspect 20: The method of any of Aspects 18-19, further comprising:receiving, from the other wireless node, a request to beam sweep atleast one CSI-RS using one or more candidate transmit beams to be pairedin full-duplex operation with the downlink receive beam used for initialaccess.

Aspect 21: The method of any of Aspects 14-20, wherein one or more ofthe candidate downlink receive beams or the candidate uplink transmitbeams are associated with one or more metrics that satisfy one or moreselection criteria associated with full-duplex operation.

Aspect 22: The method of any of Aspects 14-21, wherein one or more ofthe candidate downlink receive beams and the candidate uplink transmitbeams are associated with different panels of the other wireless node.

Aspect 23: The method of any of Aspects 14-22, wherein the reportidentifies multiple beams that the other wireless node can use toreceive an SSB transmitted in multiple repetitions.

Aspect 24: The method of Aspect 23, wherein the report includes metricsassociated with the multiple beams that the other wireless node can useto receive the same SSB.

Aspect 25: The method of any of Aspects 14-24, further comprising:transmitting, to the other wireless node, information configuring one ormore self-interference measurements based at least in part on the one ormore candidate downlink receive beams or candidate uplink transmit beamsindicated in the report; and receiving, from the other wireless node,information identifying at least one downlink and uplink beam pairsuitable for full-duplex operation based at least in part on the one ormore self-interference measurements.

Aspect 26: The method of any of Aspects 14-25, wherein the wireless nodeincludes one or more of a base station, a control node, a parent node,or a scheduling node, and wherein the other wireless node includes oneor more of a user equipment, an integrated access and backhaul node, achild node, or a scheduled node.

Aspect 27: An apparatus for wireless communication at a device,comprising a processor; memory coupled with the processor; andinstructions stored in the memory and executable by the processor tocause the apparatus to perform the method of any of Aspects 1-13.

Aspect 28: A device for wireless communication, comprising a memory andone or more processors coupled to the memory, the memory and the one ormore processors configured to perform the method of any of Aspects 1-13.

Aspect 29: An apparatus for wireless communication, comprising at leastone means for performing the method of any of Aspects 1-13.

Aspect 30: A non-transitory computer-readable medium storing code forwireless communication, the code comprising instructions executable by aprocessor to perform the method of any of Aspects 1-13.

Aspect 31: A non-transitory computer-readable medium storing a set ofinstructions for wireless communication, the set of instructionscomprising one or more instructions that, when executed by one or moreprocessors of a device, cause the device to perform the method of any ofAspects 1-13.

Aspect 32: An apparatus for wireless communication at a device,comprising a processor; memory coupled with the processor; andinstructions stored in the memory and executable by the processor tocause the apparatus to perform the method of any of Aspects 14-26.

Aspect 33: A device for wireless communication, comprising a memory andone or more processors coupled to the memory, the memory and the one ormore processors configured to perform the method of any of Aspects14-26.

Aspect 34: An apparatus for wireless communication, comprising at leastone means for performing the method of any of Aspects 14-26.

Aspect 35: A non-transitory computer-readable medium storing code forwireless communication, the code comprising instructions executable by aprocessor to perform the method of any of Aspects 14-26.

Aspect 36: A non-transitory computer-readable medium storing a set ofinstructions for wireless communication, the set of instructionscomprising one or more instructions that, when executed by one or moreprocessors of a device, cause the device to perform the method of any ofAspects 14-26.

The foregoing disclosure provides illustration and description, but isnot intended to be exhaustive or to limit the aspects to the preciseforms disclosed. Modifications and variations may be made in light ofthe above disclosure or may be acquired from practice of the aspects.

As used herein, the term “component” is intended to be broadly construedas hardware and/or a combination of hardware and software. “Software”shall be construed broadly to mean instructions, instruction sets, code,code segments, program code, programs, subprograms, software modules,applications, software applications, software packages, routines,subroutines, objects, executables, threads of execution, procedures,and/or functions, among other examples, whether referred to as software,firmware, middleware, microcode, hardware description language, orotherwise. As used herein, a processor is implemented in hardware and/ora combination of hardware and software. It will be apparent that systemsand/or methods described herein may be implemented in different forms ofhardware and/or a combination of hardware and software. The actualspecialized control hardware or software code used to implement thesesystems and/or methods is not limiting of the aspects. Thus, theoperation and behavior of the systems and/or methods were describedherein without reference to specific software code—it being understoodthat software and hardware can be designed to implement the systemsand/or methods based, at least in part, on the description herein.

As used herein, satisfying a threshold may, depending on the context,refer to a value being greater than the threshold, greater than or equalto the threshold, less than the threshold, less than or equal to thethreshold, equal to the threshold, not equal to the threshold, or thelike.

Even though particular combinations of features are recited in theclaims and/or disclosed in the specification, these combinations are notintended to limit the disclosure of various aspects. In fact, many ofthese features may be combined in ways not specifically recited in theclaims and/or disclosed in the specification. Although each dependentclaim listed below may directly depend on only one claim, the disclosureof various aspects includes each dependent claim in combination withevery other claim in the claim set. As used herein, a phrase referringto “at least one of” a list of items refers to any combination of thoseitems, including single members. As an example, “at least one of: a, b,or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well asany combination with multiples of the same element (e.g., a-a, a-a-a,a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or anyother ordering of a, b, and c).

No element, act, or instruction used herein should be construed ascritical or essential unless explicitly described as such. Also, as usedherein, the articles “a” and “an” are intended to include one or moreitems and may be used interchangeably with “one or more.” Further, asused herein, the article “the” is intended to include one or more itemsreferenced in connection with the article “the” and may be usedinterchangeably with “the one or more.” Furthermore, as used herein, theterms “set” and “group” are intended to include one or more items (e.g.,related items, unrelated items, or a combination of related andunrelated items), and may be used interchangeably with “one or more.”Where only one item is intended, the phrase “only one” or similarlanguage is used. Also, as used herein, the terms “has,” “have,”“having,” or the like are intended to be open-ended terms. Further, thephrase “based on” is intended to mean “based, at least in part, on”unless explicitly stated otherwise. Also, as used herein, the term “or”is intended to be inclusive when used in a series and may be usedinterchangeably with “and/or,” unless explicitly stated otherwise (e.g.,if used in combination with “either” or “only one of”).

What is claimed is:
 1. A method of wireless communication performed by awireless node, comprising: determining one or more measurementsassociated with a beam search performed during a downlink beammanagement process; and transmitting, to another wireless node, a reportthat indicates one or more candidate downlink receive beams, candidateuplink transmit beams, or candidate downlink receive and uplink transmitbeam pairs suitable for full-duplex operation based at least in part onthe one or more measurements.
 2. The method of claim 1, wherein the beamsearch includes one or more measurement opportunities associated withone or more synchronization signal block (SSB) resources on which thewireless node is not scheduled for data transmissions.
 3. The method ofclaim 2, wherein the one or more measurements include one or morereceive beam measurements associated with the one or more SSB resources.4. The method of claim 1, further comprising: transmitting, to the otherwireless node, a request for one or more measurement opportunities tosearch for one or more receive beams, other than a receive beam used forinitial access, using one or more synchronization signal block (SSB)resources.
 5. The method of claim 4, wherein the one or more receivebeams correspond to candidate transmit beams to be paired with thereceive beam used for initial access.
 6. The method of claim 4, furthercomprising: transmitting, to the other wireless node, a request to beamsweep at least one channel state information reference signal (CSI-RS)using one or more candidate transmit beams to be paired in full-duplexoperation with the receive beam used for initial access.
 7. The methodof claim 1, wherein one or more of the candidate downlink receive beamsor the candidate uplink transmit beams are associated with one or moremetrics that satisfy one or more selection criteria associated withfull-duplex operation.
 8. The method of claim 1, wherein one or more ofthe candidate downlink receive beams and the candidate uplink transmitbeams are associated with different panels.
 9. The method of claim 1,wherein the report identifies multiple beams that can be used to receivea synchronization signal block (SSB) transmitted in multiplerepetitions.
 10. The method of claim 1, further comprising: receiving,from the other wireless node, information configuring one or moreself-interference measurements based at least in part on the one or morecandidate downlink receive beams or candidate uplink transmit beamsindicated in the report; and performing the one or moreself-interference measurements to identify at least one downlink anduplink beam pair suitable for full-duplex operation.
 11. A method ofwireless communication performed by a wireless node, comprising:transmitting one or more downlink signals in one or more beam sweepsduring a downlink beam management process; and receiving, from anotherwireless node, a report that indicates one or more candidate downlinkreceive beams, candidate uplink transmit beams, or candidate downlinkreceive and uplink transmit beam pairs suitable for full-duplexoperation based at least in part on one or more measurements associatedwith a beam search performed by the other wireless node during thedownlink beam management process.
 12. The method of claim 11, whereinthe beam search includes one or more measurement opportunitiesassociated with one or more synchronization signal block (SSB) resourceson which the other wireless node is not scheduled for datatransmissions.
 13. The method of claim 12, wherein the one or moremeasurements include one or more receive beam measurements associatedwith the one or more SSB resources.
 14. The method of claim 11, furthercomprising: receiving, from the other wireless node, a request for oneor more measurement opportunities to search for one or more receivebeams, other than a receive beam used for initial access, using one ormore synchronization signal block (SSB) resources.
 15. The method ofclaim 14, wherein the one or more receive beams correspond to candidatetransmit beams to be paired with the receive beam used for initialaccess.
 16. The method of claim 14, further comprising: receiving, fromthe other wireless node, a request to beam sweep at least one channelstate information reference signal (CSI-RS) using one or more candidatetransmit beams to be paired in full-duplex operation with the downlinkreceive beam used for initial access.
 17. The method of claim 11,wherein one or more of the candidate downlink receive beams or thecandidate uplink transmit beams are associated with one or more metricsthat satisfy one or more selection criteria associated with full-duplexoperation.
 18. The method of claim 11, wherein one or more of thecandidate downlink receive beams and the candidate uplink transmit beamsare associated with different panels of the other wireless node.
 19. Themethod of claim 11, wherein the report identifies multiple beams thatthe other wireless node can use to receive a synchronization signalblock (SSB) transmitted in multiple repetitions.
 20. The method of claim11, further comprising: transmitting, to the other wireless node,information configuring one or more self-interference measurements basedat least in part on the one or more candidate downlink receive beams orcandidate uplink transmit beams indicated in the report; and receiving,from the other wireless node, information identifying at least onedownlink and uplink beam pair suitable for full-duplex operation basedat least in part on the one or more self-interference measurements. 21.A wireless node for wireless communication, comprising: a memory; andone or more processors operatively coupled to the memory, the memory andthe one or more processors configured to: determine one or moremeasurements associated with a beam search performed during a downlinkbeam management process; and transmit, to another wireless node, areport that indicates one or more candidate downlink receive beams,candidate uplink transmit beams, or candidate downlink receive anduplink transmit beam pairs suitable for full-duplex operation based atleast in part on the one or more measurements.
 22. The wireless node ofclaim 21, wherein the beam search includes one or more measurementopportunities associated with one or more synchronization signal blockresources on which the wireless node is not scheduled for datatransmissions.
 23. The wireless node of claim 21, wherein the memory andthe one or more processors are further configured to: transmit, to theother wireless node, a request for one or more measurement opportunitiesto search for one or more receive beams, other than a receive beam usedfor initial access, using one or more synchronization signal blockresources.
 24. The wireless node of claim 21, wherein the reportidentifies multiple beams that can be used to receive a synchronizationsignal block transmitted in multiple repetitions.
 25. The wireless nodeof claim 21, wherein the memory and the one or more processors arefurther configured to: receive, from the other wireless node,information configuring one or more self-interference measurements basedat least in part on the one or more candidate downlink receive beams orcandidate uplink transmit beams indicated in the report; and perform theone or more self-interference measurements to identify at least onedownlink and uplink beam pair suitable for full-duplex operation.
 26. Awireless node for wireless communication, comprising: a memory; and oneor more processors operatively coupled to the memory, the memory and theone or more processors configured to: transmit one or more downlinksignals in one or more beam sweeps during a downlink beam managementprocess; and receive, from another wireless node, a report thatindicates one or more candidate downlink receive beams, candidate uplinktransmit beams, or candidate downlink receive and uplink transmit beampairs suitable for full-duplex operation based at least in part on oneor more measurements associated with a beam search performed by theother wireless node during the downlink beam management process.
 27. Thewireless node of claim 26, wherein the beam search includes one or moremeasurement opportunities associated with one or more synchronizationsignal block resources on which the other wireless node is not scheduledfor data transmissions.
 28. The wireless node of claim 26, wherein thememory and the one or more processors are further configured to:receive, from the other wireless node, a request for one or moremeasurement opportunities to search for one or more receive beams, otherthan a receive beam used for initial access, using one or moresynchronization signal block resources.
 29. The wireless node of claim26, wherein the report identifies multiple beams that the other wirelessnode can use to receive a synchronization signal block transmitted inmultiple repetitions.
 30. The wireless node of claim 26, wherein thememory and the one or more processors are further configured to:transmit, to the other wireless node, information configuring one ormore self-interference measurements based at least in part on the one ormore candidate downlink receive beams or candidate uplink transmit beamsindicated in the report; and receive, from the other wireless node,information identifying at least one downlink and uplink beam pairsuitable for full-duplex operation based at least in part on the one ormore self-interference measurements.